Home / 18,140,281.92-25,033,588.16-9,991,520.32

Finding the Fourth Proportional to 18,140,281.92, 25,033,588.16 and 9,991,520.32

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Solution

The fourth proportional to 18,140,281.92, 25,033,588.16 and 9,991,520.32 is: 13,788,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140,281.92 : 25,033,588.16 = 9,991,520.32 : x
  2. Step 2: Convert to fraction form
    18,140,281.92/25,033,588.16 = 9,991,520.32/x
  3. Step 3: Cross multiply
    18,140,281.92x = 25,033,588.16 × 9,991,520.32
  4. Step 4: Simplify right side
    18,140,281.92x = 250,123,604,783,151.41
  5. Step 5: Solve for x
    x = 250,123,604,783,151.41/18,140,281.92
  6. Step 6: Final answer
    x = 13,788,297.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.